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Posted by HeatPro on April 06, 2007 at 14:52:28:
In Reply to: Taco Mixing Valve thermosiphoning posted by Ronald G. Scalzo on March 21, 2007 at 23:13:45:
a good 8' run in 3/4" pipe
is a cause of thermo-siphoning. A U-trap made from the 3/4 tubing from the indirect hot water outlet toward the floor 3-feet and then rising to the cold water source would prevent thermo-siphoning.
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